Kodi kuwerengera ndalama za matupi zonse zojambula

Mmiyoyo yathu nthawi zonse kuwerengera buku la mosiyanasiyana zojambula. Mwachitsanzo, zomangamanga zofunika bwino kuwerengera ndalama za kunkhondo ndi maenje. Komanso, mtengo uwu anatsimikiza pafupifupi okonza kuntchito. Ndi ndime ya maphunziro mu "Masamu" limafotokoza za mmene kuwerengera buku la ziphiphiritso zosiyanasiyana zojambula. Nanga bwanji za anthu amene kalekale za kusukulu? Nkhaniyi itithandiza inu kukumbukira chirichonse.

Choyamba, tiyenera kufotokoza mmene kuwerengera buku la matupi zonse zojambula. Zina mwa piramidi, ndi cuboid, phirilo yamphamvu, dera ndi bokosi.

Piramidi ndi polyhedron amene m'munsi ndi polygon. Onse mbali ina - ndi Triangles ndi vertex wamba. Pofuna kudziwa mlingo umenewu thupi zojambula, muyenera kudziwa kapena kuwerengera zotsalira ndi kutalika. Voliyumu ya piramidi zizigwirizana ndi gawo lachitatu chipatso cha kutalika ndi dera chithunzi cha m'munsi a. Dongosolo izo zikanakhoza Chioneke motero:

V = 1/3 • S • H

Kenaka mndandanda wathu ndi bokosi. Kodi kuwerengera buku la chithunzi ichi? A bokosi - ndi prism, lomwe lili m'munsi mwa parallelogram a. Ngati mbali zonse zinayi, amatchedwa lateral, ndi rectangle, pamenepo bokosi amatchedwa mwachindunji. Ngati maphwando onse asanu - rectangles, ndi cuboid. Kusamutsidwa kwa zimakwana limafanana ndi mankhwala a zedi awiri: dera m'munsi ndi kutalika kwa maonekedwe. Dongosolo ndi uyu akhoza kulembedwa monga:

V = S • H

Koma buku la cuboid, ndi kuchita masamu kuti tinachita m'litali, m'lifupi, ndi msinkhu.

V = ndi • b • H, m'mene

ndi - m'lifupi, b - kanjedza kutalika - kutalika, h.

Ndi kanjedza yosavuta likukhudza mbewa zakufa, amene analandira chifukwa kasinthasintha wa kansalu kukhala ngodya apo pomwe wina wa cathetus ake. Kodi kuwerengera buku la phirilo ndi? Ndithu chabe, izo limafanana ndi gawo lachitatu la m'dera ntchito ya m'munsi ndi kutalika.

V = 1/3 • S • H

Ndiponso, buku la phirilo ndi kuchita masamu mfundo:

V = 1/3 • f • H • r², mmene

N = 3.141592,

r Mukhoza - utali wozungulira bwalo atagona m'munsi lapansi.

Ndipo tsopano tione mmene kuwerengera buku la yamphamvu ya? Kumbukirani kuti ali ndi udindo. The yamphamvu - chithunzi amene analandira chifukwa cha kasinthasintha wa rectangle za umodzi wa m'mbali mwake. kukula kwake limafanana ndi mankhwala a msinkhu ndi malo maziko a. Ndondomeko kwalembedwa motere:

V = N • R² • h.

Dera ndi chatsekedwa mawonekedwe, imene mfundo zonse magudumu ake ili pa mtunda wofanana ku likulu. Kodi kuwerengera ndalama zoterozo thupi? Kuti tichite zimenezi, pali mfundo zotsatirazi:

V = 4/3 • 3,14 • r³

Monga mukuonera pa pamwamba, kuwerengera buku la munthu wina zojambula sadzakhala kovuta, podziwa njira. Ngati mtengo mu njira Sizikudziwika m'pofunika kuwerengera, kale kuganizira kufunika lathyathyathya chithunzi.

Komanso, tisaiwale kuti mfundo zonse ntchito chilinganizo limodzi kuyenera kuchitika m'njira mayunitsi ofanana. Mwachitsanzo, ngati utali wozungulira limeneli yatchulidwa mamita, ndi kutalika tisatongwa lofotokozeredwa m'njira meters, mwinamwake yankho adzakhala onyenga.

Kuwonjezera izi, pali akalumikidzidwa zojambula ndi zambiri akalumikidzidwa zovuta: piramidi truncated, ndi yamphamvu dzenje, ndipo ena. Payenera kukhala wina mitunduyi. Mwachitsanzo, buku la yamphamvu dzenje ndi wofanana ndi kusiyana voliyumu ya yamphamvu akuluakulu ndi ang'onoang'ono. Pamene kuwerengetsa deta izi, palibe zovuta. Inu muyenera kuti aipereke kwa thupi ndi limodzi mpukutu umene Kadulidwa kutali. Mudzaona kuti njira yothetsera nkhani adzafika palokha. Ndipo musataye mtima ngati chinachake sachiza kuthetsa, ingokhalani otsimikiza kuwerenga nkhaniyi.